room.getLocalContext().setPreference("targetBrightness",
String.valueOf(targetBrightness));
controller.attachSensor(sensor);
for (int i = 0; i < 10; i++) {
lights[i] = new LightingActuator();
controller.attachActuator(lights[i]);
room.addActuator(lights[i]);
}
room.addController(controller);
room.addSensor(sensor);
double brightness = room.getLocalContext().getBrightness();